US3285746A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Irreversible photothermotropic compositions
Assignee: Individual
•
Filing: 1964-07-23
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Granted: 1966-11-15
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Expires: 1984-07-23
Abstract
No abstract record available.
Inventors
- 👤 Alvin M Marks
- 👤 Mortimer M Marks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:45
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/72; G03C1/725; B; B41; B41M; B41M5/00; B41M5/26; B41M5/30; B41M5/32; Y; Y10; Y10S; Y10S430/00; Y10S430/163
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
87 words
AN IRREVERSIBLE PHOTOTHERMOTROPIC COMPOSITION COMPRISING A SOLID SOLUTION OF AN INORGANIC POLYACID SELECTED FROM THE GROUP CONSISTING OF PHOSPHOMOLYBDIC, AND, PHOSPHOVANADOMOLYBDIC ACIDS AND MIXTURES THEREOF, AND A POLYMER SELECTED FROM THE GROUP CONSISTING OF POLYVINYL BUTYRAL, POLYVINYL ALCOHOL ACETATE COPOLYMERS AND MIXTURES THEREOF, SAID INORGANIC POLYACID BEING PRESENT IN AMOUNT FROM ABOUT 25 TO ABOUT 80 PERCENT AND SAID POLYMER BEING PRESENT IN AMOUNT FROM ABOUT 20 TO ABOUT 75 PERCENT, SAID PERCENTAGES BEING BY WEIGHT BASED ON THE COMBINED WEIGHTS OF SAID POLYACID AND SAID POLYMER.
Claim 2
Dependent Claim
87 words
AN IRREVERSIBLE PHOTOTHERMOTROPIC COMPOSITION COMPRISING A SOLID SOLUTION OF AN INORGANIC POLYACID SELECTED FROM THE GROUP CONSISTING OF PHOSPHOMOLYBDIC, AND, PHOSPHOVANADOMOLYBDIC ACIDS AND MIXTURES THEREOF, AND A POLYMER SELECTED FROM THE GROUP CONSISTING OF POLYVINYL BUTYRAL, POLYVINYL ALCOHOL ACETATE COPOLYMERS AND MIXTURES THEREOF, SAID INORGANIC POLYACID BEING PRESENT IN AMOUNT FROM ABOUT 25 TO ABOUT 80 PERCENT AND SAID POLYMER BEING PRESENT IN AMOUNT FROM ABOUT 20 TO ABOUT 75 PERCENT, SAID PERCENTAGES BEING BY WEIGHT BASED ON THE COMBINED WEIGHTS OF SAID POLYACID AND SAID POLYMER.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-11-14 | 1970-05-16 | 1970-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-14 | 1974-05-16 | 1974-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-14 | 1978-05-16 | 1978-11-15 | $7700.00 | Window Closed / Lapsed |